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Photo: UNISDR
Figure 1 shows recorded disaster events worldwide and indicates an increasing trend as well as number of actual occurrences. The figure indicates that the number of recorded seismic events (deadliest in terms of loss of life) is relatively constant, but points to an increase in the reported number of storms and floods. In many parts of the world, the risks associated with weather-related hazards are on the rise (the risk of economic losses is also on the rise, although fewer deaths have been recorded). The number and intensity of floods, droughts, landslides, and heat waves can have a major impact on urban systems and resilience strategies. Depending on the location, climate change is likely to increase the frequency of precipitation in many regions. This will imply changes in flood patterns and contribute to upward trends in coastal high water levels.
Jakarta: One main reason leading to urban floods during heavy rains is insufficient or clogged drains.
Figure 1: Number of recorded disasters. Source: EMDAT-CRED, Brussels
These extremes need to be factored into future land-use plans and other measures, according to the IPCC Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation.The increase in impact will remain largely dependent on human activity in terms of exposure and vulnerability (see Annex 3).